Quest Engineering M35 User manual

Owner’s Manual
M35 / M65 / M35t / M65t

1
M35(t) / M65(t)
Introductions ............................................................................. 2
Features ..................................................................................... 3
Controls .................................................................................... 4
Setups ......................................................................................... 5
Wiring Guide ............................................................................. 5
Connections ............................................................................. 7
Operations ................................................................................ 9
MOH ................................................................................ 10
Madia module ......................................................................... 11
Block Diagram ......................................................................... 12
Specifications ........................................................................ 13
Table of Contents
Table of Contents

2
M35(t) / M65(t)
Introductions
Welcome
Congratulation and thank you for the purchasing M35(t) / M65(t), a multi-function commercial
amplier.These ampliers are designed to provide a big impact in sound reproduction and to
produce the best and highest quality audio at an affordable price. We wish you great enjoyment
and satisfaction when using your amplier, whether you are an installation, or reinforcement
engineer.
Unpacking and Installation
Although it is neither complicated to install nor difcult to operate your amplier, a few minutes of
your time is required to read this manual for a properly wired installation and becoming familiar
with its features and how to use them. Please take a great care may be needed when moving
your set and are required if it ever becomes necessary to return your set for service. Never place
the unit near radiator, in front of heating vents, to direct sun light, in excessive humid or dusty
location to avoid damages and to guaranty a long reliable use.
Connect your unit with the system components according to the description on the following
pages.
M35(t) / M65(t)
Introductions

3
M35(t) / M65(t)
Features
The M35(t) / M65(t) mixer ampliers are comprehensive, all-in-one mixer-amplier solutions
for commercial and industrial applications. These low-cost units provide all necessary features in
a simple building-block format.
* Three microphone and two line inputs with 3 Pin Euro block and RCA jacks.
* Acceptable wide range(up to 44dB) input level.
* telephone paging input by Euro block terminal,with LEVEL &DUCKING DEPTH Controls.
* Two layer priority muting.
* USB MP3 Player,SD Card,FM Tuner(M35t,M65t only)
* 35watts(M35) and 65Watts(M65) rated power output.
* Advanced protection system includes current limiting, over current and thermal protection.
* Desktop and 19-inches rack mountable type.
* Two bands tone controls.
* Low distortion and low noise level.
* Compact size and lightweight.
* Ideal commercial and industrial use.
Features

4
M35(t) / M65(t)
Controls
1
Controls
1. Input channel volumes.
2. Two bands tone controls ( 100Hz/10KHz ).
3. Master volume control.
4. Indicators ( Protection/Output level/Power ).
5. Power switch.
6.MP3 Player,SD Card,FM Tuner.
7.AUX INPUT
FRONT PANELS
[Figure 1.1 Front panel diagram ]
23
7
46
5
1
1. power cable.
2. Speaker outputs connector ( COM,4-ohm, 8-ohm 25V,and 70V ).
3.MOH(Music On Hold) Terminal with LEVEL Control.
4. Gain controls for variable input level.
5. Signal input connectors.
6.PHANTOM ON / OFF Switch
7.DUCKING DEPTH Control.
8.TELE-PAGING Input with LEVEL,DUCKING DEPTH Control.
9.FM ANTENA
REAR PANELS
[ Figure 1.2 Rear panel diagram ]
23 5 6
789
4

5
M35(t) / M65(t) Setups
Installation
CAUTION : Before you begin, make sure your mixer-amplier is disconnected from the power source, with
the power switch in the “OFF” position and all level controls turned completely down (counterclockwise).
You may stack mixer-ampliers without using a cabinet or you may place a single mixer-amplier
on a surface with 12-inches (about 30cm) of air space around the unit for convection cooling.
Wiring guide
Choose input wire and connectors
We recommends using pre-built or professionally wired balanced line. 22 to 24 gauge cables.
Figure 2.1 shows connector pin assignments for wiring. The RCA input connections can also be
used for unbalanced inputs.
Setups
[ Figure 2.1 Input wire and connectors ]

6
M35(t) / M65(t)
Choose output wire and connectors
For the amplier output connectors, We recommends using pre-built or professionally wired,
high-quality, and heavy gauge speaker wires. You may use EURO blocks for your output con-
nectors. To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loud-
speaker cable connectors
Using the guidelines below, select the appropriate size wire based on the distance from amplier
to speaker. The wire sizes apply to the 4-ohm tap.
Distance Wire Size
Up to 25 ft. 16 AWG
26~40 ft. 14 AWG
41~60 ft. 12AWG
61~100 ft. 10AWG
101ft~150 ft. 8AWG
151~200 ft. 6AWG
NOTE : Custom wiring should only be performed by qualied personnel. Class 2 wiring is re-
quired.
CAUTION : Never use shielded cable for output power wiring
Setups

7
M35(t) / M65(t)
Connections
Connections
Choose input wire and connectors
[ Figure 2.2 How to connect speakers ]
INPUT : Connect microphones or balanced line-level sources to mixer-amplier balanced inputs.
Set Gain volume accordingly. Connect unbalanced line-level signals to RCA input connectors.
OUTPUT : Maintain proper polarity on output connectors.
For each output channel, connect the output EURO block terminals to the loudspeaker loads.
Use terminals marked COM and 4Ω / 8Ω for a loudspeaker load, or use terminals marked 25V,
70V, COM for constant-voltage speaker loads.
Connect the COM terminal to speaker negative(-) lead; connect one of the other terminals to
speaker positive(+) lead.
The impedance and output voltage are same as following Table 2.1
M35(t) 4Ω / 11.8V 8Ω /16.7V 140Ω / 70V 17.8Ω / 25V
M65(t) 4Ω / 16V 8Ω / 22.8V 75Ω / 70V 9.6Ω / 25V
[ Table 2.1 Output voltage and impedance ]
NOTE : Impedances indicated in the table 2.1 represent the total speaker system impedances.
Speaker connection is shown in Figure 2.2

8
M35(t) / M65(t)
[ Figure 2.3 Wrong connection ]
Connections
CAUTION : Never use both the Low-Z(4Ω / 8Ω)and Hi-Z(25V, 70V) terminals at the same time

9
M35(t) / M65(t) Operations
Operations
Telephone paging
Connect mixer-amplier TELE-PAGING connector to telephone interface unit/PBX like telephone
pager.
You can announce by telephone after dial up to telephone interface unit/PBX.
Signal input gain control
M series mixer-amplier can accept variable and wide range input signal with trim pot.
Adjusts the trim pot in a range of 44dB to accept variable external equipments.
Figure 3.2 shows detail input sensitivities.
[ Figure 3.2 Acceptable input sensitivity per each channels ]
[ Figure 3.1 Telephone paging connecon ]
Priority Control
M series mixer-amplier has two layer priority mute function. When higher level source is acti-
vated, other input signals are muted automatically except same priority level source.
CH2,CH3,AUX >CH1 > Telephone Paging.

10
M35(t) / M65(t) MOH
MOH
For 2-Channel Broadcast below Example can be Performed When the Unit is used in conjunc-
tion with the Optional M35(t) or M65(t).

11
M35(t) / M65(t) Media module _M35t,M65t Only
Media module _ M35t,M65t Only
1.Display
2.USB Connector.
You can insert USB disk then play MP3 autornatically.
3.SD Card Slot.
You can insert SD card then play MP3 automatically.
4.ON / OFF SWITCH
5.PREV / VOL -.
Long pressing for volume down.
In USB mode,short pressing for previous song.
In tuner mode,short pressing for previons channel.
6.PLAY / PAUSE.
In USB mode,short pressing for play / pause.
In tuner mode,long pressing for search channel and save.
7.NEXT / VOL +.
Long pressing for volume up.
In USB mode,short pressing for next song.
In tuner mode,short pressing for next channel.
8.MODE SWITCH.
9.LINE INPUT
1
5 6 78
3
4
2
9

12
M35(t) / M65(t) Block Diagram
Block Diagram

13
M35(t) / M65(t) Specifications
Specifications
Necessary modications are carried out without notice
Performance
M35(t) M65(t)
Input Sensitivity for full output at maximum gain
Balanced Microphone Channels -50dB ± 3dB
Unbalanced AUX Channels -30dB ± 3dB
Tele-Paging -21dB ± 3dB
Frequency Response
at 1watt from speaker out tap, 80Hz ~18kHz +1.5/-3dB
Tone Controls
100Hz,10kHz ±12dB±3dB
Signal to Noise Ratio at rated power output Less than 90dB
Crosstalk at all control maximum -70dB at 1kHz
Rated Output Power at THD 0.5% 35 Watts 65 Watts
Total Harmonic Distortion(THD) at 1kHz rated power Less than 0.5%
Power Band Width at 1kHz from speaker out tap 80Hz~18kHz with less than 0.5% THD
DC Output Offset Less than ±3mV
Operating Temperature/Humidity at non-condensing 0°~40°C at 95% humidity
Output Voltage and Impedance
4Ω 11.8V 16V
8Ω 16.7Ω 22.8Ω
25V 17.8Ω 9.6Ω
70V 140Ω 75Ω
Construction
Cooling Convection Cooled
Dimensions (Width/Height/Depth) 270 mm X 76 mm X 230 mm
Net Weight 3.59 kg 3.21 kg